// jQuery Context Menu Plugin
//
// Version 1.01 customized version (see comment below)
//
// Cory S.N. LaViska
// A Beautiful Site (http://abeautifulsite.net/)
//
// More info: http://abeautifulsite.net/2008/09/jquery-context-menu-plugin/
//
// Terms of Use
//
// This plugin is dual-licensed under the GNU General Public License
//   and the MIT License and is copyright A Beautiful Site, LLC.
//
// 2011-02-17 Martin Wendt: 
//            Changed stopPropagation() to preventDefault() in order to make it
//            work with Dynatree drag'n'drop.  
//            See http://code.google.com/p/dynatree/issues/detail?id=174
// 2011-11-07 Ken Moore:
//            Check to see if the right mouse button was clicked BEFORE
//            stopping the event default.
//
if(jQuery)( function() {
        $.extend($.fn, {
                
                contextMenu: function(o, callback) {
                        // Defaults
                        if( o.menu == undefined ) return false;
                        if( o.inSpeed == undefined ) o.inSpeed = 150;
                        if( o.outSpeed == undefined ) o.outSpeed = 75;
                        // 0 needs to be -1 for expected results (no fade)
                        if( o.inSpeed == 0 ) o.inSpeed = -1;
                        if( o.outSpeed == 0 ) o.outSpeed = -1;
                        // Loop each context menu
                        $(this).each( function() {
                                var el = $(this);
                                var offset = $(el).offset();
                                // Add contextMenu class
                                $('#' + o.menu).addClass('contextMenu');
                                // Simulate a true right click
                                $(this).mousedown( function(e) {
                                        var evt = e;
                                        // KM changes as noted above.
                                        if(evt.button != 2){
                                            // not a right mouse click, so do nothing
                                            return;
                                        }
//                                      evt.stopPropagation();
                                        evt.preventDefault();
                                        $(this).mouseup( function(e) {
//                                              e.stopPropagation();
                                                e.preventDefault();
                                                var srcElement = $(this);
                                                $(this).unbind('mouseup');
                                                if( evt.button == 2 ) {
                                                        // Hide context menus that may be showing
                                                        $(".contextMenu").hide();
                                                        // Get this context menu
                                                        var menu = $('#' + o.menu);
                                                        
                                                        if( $(el).hasClass('disabled') ) return false;
                                                        
                                                        // Detect mouse position
                                                        var d = {}, x, y;
                                                        if( self.innerHeight ) {
                                                                d.pageYOffset = self.pageYOffset;
                                                                d.pageXOffset = self.pageXOffset;
                                                                d.innerHeight = self.innerHeight;
                                                                d.innerWidth = self.innerWidth;
                                                        } else if( document.documentElement &&
                                                                document.documentElement.clientHeight ) {
                                                                d.pageYOffset = document.documentElement.scrollTop;
                                                                d.pageXOffset = document.documentElement.scrollLeft;
                                                                d.innerHeight = document.documentElement.clientHeight;
                                                                d.innerWidth = document.documentElement.clientWidth;
                                                        } else if( document.body ) {
                                                                d.pageYOffset = document.body.scrollTop;
                                                                d.pageXOffset = document.body.scrollLeft;
                                                                d.innerHeight = document.body.clientHeight;
                                                                d.innerWidth = document.body.clientWidth;
                                                        }
                                                        (e.pageX) ? x = e.pageX : x = e.clientX + d.scrollLeft;
                                                        (e.pageY) ? y = e.pageY : y = e.clientY + d.scrollTop;
                                                        
                                                        // Show the menu
                                                        $(document).unbind('click');
                                                        $(menu).css({ top: y, left: x }).fadeIn(o.inSpeed);
                                                        // Hover events
                                                        $(menu).find('A').mouseover( function() {
                                                                $(menu).find('LI.hover').removeClass('hover');
                                                                $(this).parent().addClass('hover');
                                                        }).mouseout( function() {
                                                                $(menu).find('LI.hover').removeClass('hover');
                                                        });
                                                        
                                                        // Keyboard
                                                        $(document).keypress( function(e) {
                                                                switch( e.keyCode ) {
                                                                        case 38: // up
                                                                                if( $(menu).find('LI.hover').size() == 0 ) {
                                                                                        $(menu).find('LI:last').addClass('hover');
                                                                                } else {
                                                                                        $(menu).find('LI.hover').removeClass('hover').prevAll('LI:not(.disabled)').eq(0).addClass('hover');
                                                                                        if( $(menu).find('LI.hover').size() == 0 ) $(menu).find('LI:last').addClass('hover');
                                                                                }
                                                                        break;
                                                                        case 40: // down
                                                                                if( $(menu).find('LI.hover').size() == 0 ) {
                                                                                        $(menu).find('LI:first').addClass('hover');
                                                                                } else {
                                                                                        $(menu).find('LI.hover').removeClass('hover').nextAll('LI:not(.disabled)').eq(0).addClass('hover');
                                                                                        if( $(menu).find('LI.hover').size() == 0 ) $(menu).find('LI:first').addClass('hover');
                                                                                }
                                                                        break;
                                                                        case 13: // enter
                                                                                $(menu).find('LI.hover A').trigger('click');
                                                                        break;
                                                                        case 27: // esc
                                                                                $(document).trigger('click');
                                                                        break
                                                                }
                                                        });
                                                        
                                                        // When items are selected
                                                        $('#' + o.menu).find('A').unbind('click');
                                                        $('#' + o.menu).find('LI:not(.disabled) A').click( function() {
                                                                $(document).unbind('click').unbind('keypress');
                                                                $(".contextMenu").hide();
                                                                // Callback
                                                                if( callback ) callback( $(this).attr('href').substr(1), $(srcElement), {x: x - offset.left, y: y - offset.top, docX: x, docY: y} );
                                                                return false;
                                                        });
                                                        
                                                        // Hide bindings
                                                        setTimeout( function() { // Delay for Mozilla
                                                                $(document).click( function() {
                                                                        $(document).unbind('click').unbind('keypress');
                                                                        $(menu).fadeOut(o.outSpeed);
                                                                        return false;
                                                                });
                                                        }, 0);
                                                }else{
                                                    console.log("evt.button != 2");

                                                }
                                        });
                                });
                                
                                // Disable text selection
                                if( $.browser.mozilla ) {
                                        $('#' + o.menu).each( function() { $(this).css({ 'MozUserSelect' : 'none' }); });
                                } else if( $.browser.msie ) {
                                        $('#' + o.menu).each( function() { $(this).bind('selectstart.disableTextSelect', function() { return false; }); });
                                } else {
                                        $('#' + o.menu).each(function() { $(this).bind('mousedown.disableTextSelect', function() { return false; }); });
                                }
                                // Disable browser context menu (requires both selectors to work in IE/Safari + FF/Chrome)
                                $(el).add($('UL.contextMenu')).bind('contextmenu', function() { return false; });
                                
                        });
                        return $(this);
                },
                
                // Disable context menu items on the fly
                disableContextMenuItems: function(o) {
                        if( o == undefined ) {
                                // Disable all
                                $(this).find('LI').addClass('disabled');
                                return( $(this) );
                        }
                        $(this).each( function() {
                                if( o != undefined ) {
                                        var d = o.split(',');
                                        for( var i = 0; i < d.length; i++ ) {
                                                $(this).find('A[href="' + d[i] + '"]').parent().addClass('disabled');
                                                
                                        }
                                }
                        });
                        return( $(this) );
                },
                
                // Enable context menu items on the fly
                enableContextMenuItems: function(o) {
                        if( o == undefined ) {
                                // Enable all
                                $(this).find('LI.disabled').removeClass('disabled');
                                return( $(this) );
                        }
                        $(this).each( function() {
                                if( o != undefined ) {
                                        var d = o.split(',');
                                        for( var i = 0; i < d.length; i++ ) {
                                                $(this).find('A[href="' + d[i] + '"]').parent().removeClass('disabled');
                                                
                                        }
                                }
                        });
                        return( $(this) );
                },
                
                // Disable context menu(s)
                disableContextMenu: function() {
                        $(this).each( function() {
                                $(this).addClass('disabled');
                        });
                        return( $(this) );
                },
                
                // Enable context menu(s)
                enableContextMenu: function() {
                        $(this).each( function() {
                                $(this).removeClass('disabled');
                        });
                        return( $(this) );
                },
                
                // Destroy context menu(s)
                destroyContextMenu: function() {
                        // Destroy specified context menus
                        $(this).each( function() {
                                // Disable action
                                $(this).unbind('mousedown').unbind('mouseup');
                        });
                        return( $(this) );
                }
                
        });
})(jQuery);